a narrow trench dug for the protection of a small number of people
slit trench in American English
a narrow, relatively shallow trench for protecting a soldier from shellfire, bombs, etc.
slit trench in American English
noun
1.
a narrow trench for one or more persons for protection against enemy fire and fragmentation bombs
2.
a foxhole
Word origin
[1940–45]This word is first recorded in the period 1940–45. Other words that entered Englishat around the same time include: airlift, redline, set-aside, update, whiteout